Dictionary.com
Thesaurus.com

attainder

American  
[uh-teyn-der] / əˈteɪn dər /

noun

  1. the legal consequence of judgment of death or outlawry for treason or felony, involving the loss of all civil rights.

  2. Obsolete. dishonor.


attainder British  
/ əˈteɪndə /

noun

  1. (formerly) the extinction of a person's civil rights resulting from a sentence of death or outlawry on conviction for treason or felony See also bill of attainder

  2. obsolete dishonour

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of attainder

First recorded in 1425–75; late Middle English attaynder, atteindor, noun use of Old French ataindre, ateindre “to attain, touch (upon), affect, convict”; attain

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Judge Talwani still saw the law as a bill of attainder.

From Slate • Jul. 29, 2025

That is the process the bill of attainder tells us is the appropriate one for investigation, prosecution, and punishment, with all of the attributes of that branch.

From Slate • Oct. 6, 2023

And as for a retroactive attainder aimed at the descendants of slave owners, that one is pretty tricky, too.

From Fox News • Aug. 19, 2019

The Court found that provision to be a bill of attainder.

From Textbooks • Jan. 1, 2016

In the debate on the attainder he spoke on behalf of Strafford’s family, and later obtained some favours from the parliament for his eldest son.

From Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 5 "Hinduism" to "Home, Earls of" by Various